package main

import "fmt"

/*
* Author: JacksonCoder
* CreateTime: 2025/5/19
 */

func add(a ,b int) int{

	return a + b
}

func demo(){
	return
}


func main(){
	c := add
	sum := c(200,300)
	fmt.Println(sum)

	str := "hello,world,golang"

	for index, val := range str{
		fmt.Printf("index[%d] val[%c] len[%d]\n",index,val,
			len([]byte(string(val))))
	}
}